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  man pages->Tru64 Unix man pages -> learp (8)              



NAME    [Toc]    [Back]

       learp  -  Displays the contents of a LAN-Emulation Address
       Resolution Protocol (LE-ARP) table

SYNOPSIS    [Toc]    [Back]

       /usr/sbin/learp [-u unit_number] -a

OPTIONS    [Toc]    [Back]

       Specifies a LE-ARP cache. The unit number is the  same  as
       is  displayed  by  the  netstat  -i command.  For example:
       elan0 is unit 0, elan1 is unit 1, and so on.

              If the -u option is not specified, the default unit
              number  is 0.  Displays all entries in the LAN-Emulation
 Address Resolution Protocol (LE-ARP)  table.

DESCRIPTION    [Toc]    [Back]

       Each LAN-Emulation Client interface (displayed as elann in
       netstat output) has an Address  Resolution  Protocol  (LEARP)
  table that contains mappings of 6-byte medium access
       control (MAC) addresses to 20-byte  Asynchronous  Transfer
       Mode (ATM) addresses.  The learp command displays the contents
 of the LE-ARP table.

       Each LE-ARP table entry contains  the  following  information:
 Each MAC address that has been or is being contacted
       through the ATM-emulated LAN.  One of the following  state
       values:  AP -- LE-ARP is pending.  The ATM address associated
 with the MAC address is not known.  DE --  Delete  of
       the  LE-ARP cache entry is pending. When there are no more
       VCs for a LE-ARP entry, it is marked for deletion.   After
       there  is  no  activity  for  5 minutes (age periond), the
       entry is removed for the cache.   FD  --  Forward  Direct.
       Packets  flowing  to  the  destination are using the datadirect
 VC.  FL -- Flush is pending.  A  new  VC  has  been
       established with the remote node and the broadcast channel
       is being flushed so packets flowing on the new VC will not
       arrive  out of order.  VP -- Virtual Channel (VC) setup is
       pending.  The ATM address is known, but no  VC  is  established
  with  the  remote node.  If known, the 20-byte ATM
       address associated with the MAC address.  One of the  following
  flags: R -- Remote entry.  The MAC address is on a
       legacy (that is, Ethernet) network on the back side of  an
       ATM  edge device.  P -- Permanent entry.  The LE-ARP entry
       is permanent.  If known, this is the Virtual Path  Identifier
 (VPI) and the Virtual Channel Identifier (VCI) of the
       data-direct  VC  used  by  packets  destined  to  the  MAC
       address.  Many MAC addresses may use the same VC.

EXAMPLES    [Toc]    [Back]

       The  following example shows the output of a learp -a command
 in which the LE-ARP cache contains  five  entries:  #
       learp -a le-arp cache contains 5 entries.
          MAC    Address       State               ATM    Address
       Flags    VPI/VCI    08-00-2b-01-01-01     (AP)     pending
       08-00-2b-01-01-02                                     (VP)
       39000000000000000000000000.08002b010102.00         pending
       08-00-2b-01-02-02                                     (FL)
       39000000000000000000000000.08002b010203.00    R       0/65
       08-00-2b-01-02-03                                     (FD)
       39000000000000000000000000.08002b010203.00       0/65

SEE ALSO    [Toc]    [Back]

       Commands: atmconfig(8), atmelan(8), atmsig(8)

[ Back ]
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